Dresden 2011 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 11: Poster Session: Matter at Low Temperature

TT 11.3: Poster

Montag, 14. März 2011, 14:00–18:00, P4

Millikelvin-System for the investigation of solid state/cold atom hybrid devices — •Martin Knufinke, Petra Vergien, Helge Hattermann, Florian Jessen, Florian Karlewski, Daniel Bothner, Daniel Cano, Kai Buckenmaier, Tobias Gaber, Matthias Kemmler, Dieter Koelle, József Fortágh, and Reinhold Kleiner — Center for Collective Quantum Phenomena and their Applications, Eberhard Karls Universität Tübingen

The investigation of hybrid systems consisting of solid state devices coupled to ultracold atoms has a strong perspective towards fundamental physics. For example, in the context of cavity QED, strong coupling of cold atoms via a superconducting resonator or coupling between atoms and superconducting qubits should be feasible.

An appropriate setup has to meet the combined requirements of both the operation of superconducting devices and the ultracold atomic clouds. This demands for stable temperatures in the millikelvin regime even with thermal load from the magneto-optical trap used for the preparation of the atomic cloud, the radiation from the optical ports and the lasers. At the same time, excellent vacuum conditions and high quality optical access to the sample have to be provided. We report on the design, installation and testing of our dry dilution refrigerator. We show first measurements for the characterization of the system.